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Документ An analytical solution to the problem of thermoelastic bending of a multilayer beam with different temperature of longitudinal faces(2021-06) Ковальчук, Станіслав Богданович; Горик, Олексій ВолодимировичДокумент Analiza wybranych wyników badań instalacji solarnych w laboratorium OŹE w Zespole Szkół Elektrycznych nr 1 w Krakowie oraz Połtawskiej Państwowej Akademii Rolniczej(2010) Tytko, R.; Brykun, O. M.; Брикун, Олександр МиколайовичДокумент Analytical Determination of Reactive Forces for Curvilinear Bars with a Flat Axis of Arbitrary Shape / Аналітичне визначення реактивних зусиль для криволінійних брусів із плоскою віссю довільної форми(2019-12) Ковальчук, Станіслав Богданович; Горик, Олексій ВолодимировичДокумент Analytical Modeling of Concentrated and Localized Loads of Bars With a Curvilinear Flat Axis. Part 2. Modeling Localized Loads and Application Examples / Аналітичне моделювання зосереджених та локалізованих навантажень брусів із криволінійною плоскою віссю. Частина 2. Моделювання локалізованих навантажень та приклади застосування(2019-09) Ковальчук, Станіслав БогдановичДокумент Analytical Solution of the Problem of Thermoelastic Deformation of a Nonuniformly Rotating Multilayer Disk(2020-03) Ковальчук, Станіслав Богданович; Горик, Олексій Володимирович; Зiньковський, Анатолiй ПавловичДокумент Analytical Solution to the Plane Bending Task of the Multilayer Beam with a Circular Axis under Normal Uniform Loading(2020-09) Ковальчук, Станіслав БогдановичДокумент Application of tne fish search algorithm for optimization plans of the full factor experiment(IEEE Operations Center 445 Hoes Lane,P.O. Box 1331, Piscataway, NJ 08855-1331 USA, 2018) Muratov, V. ; Koshevoy, M.; Kostenko, O. M.; Костенко, Олена МихайлівнаA method and program was developed to optimize the plans for a full factorial experiment using the search algorithm for fish. A comparative analysis of methods for the synthesis of optimal full-scale experiment experiments for cost and time costs has been carried out. The efficiency of the method was tested on a number of such technological objects: fuel consumption in the internal combustion engine, welding of thin plates, production of parts by hot stamping, and also the process of servicing machines with numerical control. The effectiveness of the method of searching for fish by the school is shown.Документ Bactericidal Disinfection of Activated Carbon from Aerobic Microorganisms, Yeasts and Molds(2022-02) Semenov, A. O. ; Sakhno, T. V.; Hmelnitska, Y. V.; Semenova, N.; Семенов, Анатолій Олексійович; Сахно, Тамара Вікторівна; Хмельницька, Євгенія ВікторівнаДокумент Basic Stress-Strain State of a Multilayer Circular Ring under the Action of Mutually Opposite Normal Forces / Основное напряженно-деформированное состояние многослойного кругового кольца под действием взаимно противоположных нормальных сил(2019-03) Ковальчук, Станіслав Богданович; Горик, Олексій ВолодимировичДокумент Basic Stress-Strain State of a Multilayer Symmetric Circular Arch under the Action of Normal Forces in the Middle Section. Report 1. Arches of High Curvature / Аналітичний розв’язок задачі згину багатошарової симетричної кругової арки під дією нормальної сили у середньому перерізі. Повідомлення 1. Арки великої кривизни(2019-06) Ковальчук, Станіслав Богданович; Горик, Олексій ВолодимировичДокумент Bimetallic Temperature Sensors(2019) Koshevoy, M. ; Koshevaya, I.; Fesenko, A.; Kostenko, O. M.; Костенко, Олена МихайлівнаДокумент Building an analytical model of the gravitational grain movement in an open screw channel with variable inclination angles(2021-07-01) Арендаренко, Володимир Миколайович; Антонець, Анатолій Вікторович; Іванов, Олег Миколайович; Дудніков, Ігор Анатолійович; Самойленко, Тетяна ВолодимирівнаДокумент Classification rule for determining the temperature regime of induction gray cast iron(2021-01-30) Stanovska, Iraida; Duhanets, Vasyl; Prokopovych, Lada; Yakhin, S. V.; Яхін, Сергій ВалерійовичДокумент Combined method of UV treatment and ozonation during water disinfection in swimming pools(2021-11) Semenov, A. O. ; Vyzhva, S.; Sakhno, T. V.; Semenova, N.; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаПублікація Conductive frying of meat:current state and prospects(2025-12-18) Скрипник, Вячеслав Олександрович; Skrypnyk, V. O.; Yeleussinov, B.; Семенов, Анатолій Олексійович; Semenov, A. O.The monograph analyzes the current state of processes and equipment for conductive meat frying. A methodology for evaluating the energy and resource efficiency of meat frying processes and equipment has been developed. Based on this methodology, potential directions for improving the energy and resource efficiency of these processes and devices have been identified. A scientific concept is proposed, which involves creating conditions for intensified heat transfer during conductive frying by employing various physical and electrophysical methods—such as the application of electric current combined with compression, compression in a functionally closed volume, or in functionally closed chambers. The concept is supported by research results obtained from experimental prototype devices. The monograph is intended for academic staff, postgraduate and master's students, researchers, and professionals in the field of food production.Документ Cилос зі спіральним завантажувачем з неоднорідним покриттям поверхні спуску(Український інститут інтелектуальної власності, 2021-05-12) Іванов, Олег Миколайович; Арендаренко, Володимир Миколайович; Савченко, Назарій Константинович; Сімонов, Кирило ВікторовичСилос зі спіральним завантажувачем з неоднорідним покриттям поверхні спуску, до складу якого входить циліндрична ємність із завантажувальним патрубком, який переходить у відкритий гвинтовий канал, спрямований до низу силоса та утворений провертанням U-подібного профілю за гвинтовою лінією, який відрізняється тим, що поверхня гвинтового каналу по всій довжині спуску розділена на три рівні частини з нанесеним окремо на кожну покриттям з різними трибологічними властивостями, при цьому для кожної нижчерозташованої частини поверхні гвинтового каналу величина контактної взаємодії з зерном зростає.Документ Design of a roll сrusher for sunflower stems and substantiation of the rational modes of its operation(2021) Sheichenko, V. O.; Volskyi, V.; Kotsiubanskyi, R.; Dnes, V.; Bilovod, O. I.; Drozhchana, O. U.; Шейченко, Віктор Олександрович; Вольський, В. А.; Коцюбанський, Р. В.; Біловод, Олександра Іванівна; Дрожчана, Ольга УрешівнаThis paper reports a study of the technological process of grinding plant residues of sunflower and the causal relationships of factors that form the system of quality indicators. The necessary prerequisites for determining rational modes and parameters of the roll crusher have been devised. A prototype of the roll crusher was designed and fabricated, in which the cutting knives are arranged along the entire width of the grip in a staggered manner, with the possibility to change the angle of inclination to the axis of drum rotation in the range of 5...20°. It was established that in the case of the right-side arrangement of the cutting edge of knives, the highest total level of the percentage of crushed stems in the range of 101–150 mm with an additional load weighing 800 kg exceeded by 1.58 times the corresponding indicators of the roll with an additional load of 600 kg. The largest overall value of the percentage of crushed stems in the range of 0–200 mm when additionally loading the roll with 800 kg was 1.13 times higher than the corresponding indicators of the roll with an additional load of 600 kg. In the range of 0–200 mm, with an additional load on the roll of 600 kg, at the leftside arrangement of the cutting edge of the knives of the roll, higher total percentage of crushed stems was observed compared to the right-side arrangement. At a speed of 7.45 km/h, 13.6 km/h, the cumulative value of the percentage of crushed stems exceeded the corresponding indicators at the right-side arrangement of knives by 1.09 times, at the speed of 18.6 km/h – by 1.04 times, at the speed of 22 km/h – by 1.04 times, respectively. It has been noted that at the left-side arrangement of the cutting edge of the knives of the roll, the percentage of crushed stems in the range of 51–100 mm, with an additional load of 600 kg, exceeded the corresponding indicators with an additional load of 800 kg. At the speed of 10.08 km/h, it was exceeded by 1.9 times; at the speed of 13.6 km/h – by 1.44 times; at the speed of 18.6 km/h – by 1.96 times; at the speed of 22 km/h – by 1.99 times, respectively.Документ DETERMINATION OF ELASTOPLASTIC COEFFICIENT OF SHOCK INTERACTION OF SPHERICAL INDENTER WITH DEFORMABLE HALFSPACE(Eastern-European Journal of Enterprise Technologies, 2013-01) Горик, Олексій Володимирович; Ковальчук, Станіслав Богданович; Шулянський, Г. А.Erosive wear due to contact of metal surfaces with flying solid particles is a typical problem of machinery. The intensity of wear depends on the hardness of the material of wearing surface and the kinetic energy of moving solid particles. A measure of wear is associated with the parameters of the track left by a particle on the surface of parts. Thus the problem of linking of these components of the process of shock interaction of counter-bodies arises.On the basis of the elastoplastic model of shock interaction of a solid particle with a flat metal surface we have created a method of determining the coefficient, which characterized the elastoplastic properties of deformable half-space at dynamic imbedding of a spherical indenter in it. This allowed predicting the intensity of erosive wear. The coefficient was determined on the basis of existing or special laboratory results of studies of shock embedding of the indenter into prototypes, and on the basis of laboratory analytical calculations. This allowed us to summarize the available experimental data on the current input parameters of the considered process. The elastoplastic coefficient depends on the initial velocity and the diameter (mass) of attacking body and on the hardness of the material of the attacked half-space.Документ Determining the effect of the direction of installing the cutting edges of shredder roller blades on process parameters(2023) Sheichenko, V. O. ; Volskyi, V.; Kotsiubanskyi, R.; Dnes, V.; Bilovod, O. I.; Shevchuk, M.; Skoriak, Yu. B.; Шейченко, Віктор Олександрович; Вольський, В. А.; Коцюбанський, Р. В.; Біловод, Олександра Іванівна; Скоряк, Юлія БорисівнаThis paper reports a study aimed at increasing the intensity of grinding of the stems of coarse-stemmed crops by establishing the influence of the orientation of the cutting edge of the cutter-shredder knives on the quality of the technological grinding operations. Analytical dependences of the planar movement of the roller-shredder were establishedand it was determined that for rollers with knives, the cutting edge of which is directed in the direction opposite to the direction of rotation: – exceeding the value of the vertical components of the total forces of resistance of the knives, which made it possible to increase the values of forces, and, as a result, more intensive destruction of the layer of plant remains; – exceeding the values of the driving force of the knives based on the dependence of the driving force on structural and kinematic parameters (roller weight, drum radius, blade height, blade inclination angle, acceleration). Experimental studies have established an excess of up to 20 % of the quality indicators of milling sunflower and corn stems with roller knives, the cutting edge of which is directed in the direction opposite to the direction of rotation.Публікація Development of an analytical model of the controlled movement of grain material on the bulk shelves of a loading-gravity-cascade unit(2025-06-17) Antonets, A.; Антонець, Анатолій Вікторович; Arendarenko, V.; Арендаренко, Володимир Миколайович; Ivanov, O.; Іванов, Олег Миколайович; Dudnikov, I.; Дудніков, Ігор Анатолійович; Liashenko, S.; Ляшенко, Віктор ВасильовичThe object of research is the gravitational movement of grain along the transfer shelves and a cascade loading unit with two acceleration and two braking sections. The study of such movement is carried out to confirm theoretical studies on the development and justification of an analytical model of controlled gravitational movement of grain along transfer shelves. When loading grain, it can be injured when falling from a considerable height and hitting the bottom and walls of the container. This problem requires the development and study of a technical solution that would provide regulation of the velocity of grain movement when loading it into the container. Theoretical studies were carried out using the developed analytical model of grain movement and the proposed equations to find the relationships between the angles of inclination of the acceleration and braking shelves of the gravity-cascade unit. Based on the analytical model, an experimental unit was made of two acceleration and two braking shelves. The shelves can freely rotate on the axes to the required angle in the range from 0° to 90° relative to the horizontal plane. For the shelves of the acceleration sections, the angle of inclination α was chosen from the variable series of 45°, 50°, 60°. Based on the angle α, according to the model, the shelf of the first braking section was set at an angle of 20.43°, 20.48°, 20.32°, and the shelf of the second braking section was set at 38.46°, 35.28°, 29.32°. Experimental studies have shown that the velocity of grain movement is indeed regulated by a combination of the ratios of the angles of the acceleration and braking shelves. In this case, the velocity of grain in the last braking section is close to the initial flow velocity at the beginning of the first acceleration shelf. The values of the absolute and relative errors of the experiments of the experimentally determined velocities and the theoretical value of the velocity indicate quite acceptable limits of deviations for this multifactorial experiment. The relative deviation of the experimental from the theoretical velocity of movement of the grain mass does not exceed 12.76%. The results obtained and their analysis indicate that the presented analytical model and the designed gravity-cascade unit due to the braking and acceleration sections allow solving the problem of controlled movement of the velocity of grain for its loading into containers without injury, in particular into silo structures.